PCF8563 Real-Time Clock and Calendar Module - Precision Timekeeping Solution for Embedded Systems

Features and benefits

• Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal
• Century flag
• Clock operating voltage: 1.0 V to 5.5 V at room temperature
• Low backup current; typical 0.25 μA at V_DD = 3.0 V and T_amb = 25 °C
• 400 kHz two-wire I²C-bus interface (at V_DD = 1.8 V to 5.5 V)
• Programmable clock output for peripheral devices (32.768 kHz, 1.024 kHz, 32 Hz, and 1 Hz)
• Alarm and timer functions
• Integrated oscillator capacitor
• Internal Power-On Reset (POR)
• I²C-bus slave address: read A3h and write A2h
• Open-drain interrupt pin
• Package Type - 8-Pin DIP